题目内容

注射剂一般控制pH范围为

A. .4~11
B. 4~9
C. 2~9
D. 3~8
E. 5~8

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已知盐酸普鲁卡因的氯化钠等渗当量为0.18，若配制0.5%盐酸普鲁卡因等渗溶液200ml，需加入多少克氯化钠

A. 0.72g
B. .0.18g
C. 0.81g
D. 62g
E. 33g

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